1CKSUM(1)                         User Commands                        CKSUM(1)
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NAME

6       cksum - compute and verify file checksums
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SYNOPSIS

9       cksum [OPTION]... [FILE]...
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DESCRIPTION

12       Print or verify checksums.  By default use the 32 bit CRC algorithm.
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14       With no FILE, or when FILE is -, read standard input.
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16       Mandatory  arguments  to  long  options are mandatory for short options
17       too.
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19       -a, --algorithm=TYPE
20              select the digest type to use.  See DIGEST below.
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22       -b, --base64
23              emit base64-encoded digests, not hexadecimal
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25       -c, --check
26              read checksums from the FILEs and check them
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28       -l, --length=BITS
29              digest length in bits; must not exceed the max  for  the  blake2
30              algorithm and must be a multiple of 8
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32       --raw  emit a raw binary digest, not hexadecimal
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34       --tag  create a BSD-style checksum (the default)
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36       --untagged
37              create a reversed style checksum, without digest type
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39       -z, --zero
40              end  each  output  line  with NUL, not newline, and disable file
41              name escaping
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43   The following five options are useful only when verifying checksums:
44       --ignore-missing
45              don't fail or report status for missing files
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47       --quiet
48              don't print OK for each successfully verified file
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50       --status
51              don't output anything, status code shows success
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53       --strict
54              exit non-zero for improperly formatted checksum lines
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56       -w, --warn
57              warn about improperly formatted checksum lines
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59       --debug
60              indicate which implementation used
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62       --help display this help and exit
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64       --version
65              output version information and exit
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67   DIGEST determines the digest algorithm and default output format:
68       sysv   (equivalent to sum -s)
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70       bsd    (equivalent to sum -r)
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72       crc    (equivalent to cksum)
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74       md5    (equivalent to md5sum)
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76       sha1   (equivalent to sha1sum)
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78       sha224 (equivalent to sha224sum)
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80       sha256 (equivalent to sha256sum)
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82       sha384 (equivalent to sha384sum)
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84       sha512 (equivalent to sha512sum)
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86       blake2b
87              (equivalent to b2sum)
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89       sm3    (only available through cksum)
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91       When checking, the input should be a former output of this program,  or
92       equivalent standalone program.
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AUTHOR

95       Written by Padraig Brady and Q. Frank Xia.
96

REPORTING BUGS

98       GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
99       Report any translation bugs to <https://translationproject.org/team/>
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102       Copyright  ©  2023  Free Software Foundation, Inc.  License GPLv3+: GNU
103       GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
104       This is free software: you are free  to  change  and  redistribute  it.
105       There is NO WARRANTY, to the extent permitted by law.
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SEE ALSO

108       Full documentation <https://www.gnu.org/software/coreutils/cksum>
109       or available locally via: info '(coreutils) cksum invocation'
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113GNU coreutils 9.3               September 2023                        CKSUM(1)
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